Timothy A. Hernandez, MD
Internal Medicine Physician · San Antonio, TX
Timothy A. Hernandez, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1851495584, issued on Sep 12, 2006. Check the license (Texas K0489, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Timothy A. Hernandez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- K0489 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1139 E Sonterra Blvd, San Antonio, TX 78258
- Phone
- (210) 404-0000
- Enumerated
- Sep 12, 2006
- Record last updated
- Jan 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (210) 404-2812
- Medicaid ID
- 038712803 TX
- Medicare enrollment
- Enrolled (PECOS I20040106000529); may accept Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1139 E Sonterra Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mina Agaaybi, PHARMACISTPharmacist1851185078
- James Aleman, OTR, C/NDTOccupational Therapist1801456520
- Maria Janette Baking, PT, DPT, GCSGeriatric Physical Therapist1487134615
- Connie Barker, F.N.P.Family Nurse Practitioner1184628638
- Vernon Benson, M.D.Internal Medicine Physician1487638011
- Jennifer Brody, MDPulmonary Disease Physician1609862127
Verify Timothy A. Hernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K0489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average internal medicine physician in 2024
5,175 Medicare Part D claims for 349 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Rosuvastatin Calcium404 claims
- Levothyroxine Sodium247 claims
- Atorvastatin Calcium196 claims
- Mounjaro183 claims
- Amlodipine Besylate163 claims
- Farxiga127 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $189.50
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Pasteur Medical Associates PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy A. Hernandez among 9,175 internal medicine physician records in Texas
Timothy A. Hernandez, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1995 · median 2004 among the 6,088 with a school on file
- Record last updated2018 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
657 internal medicine physician records list a practice address in San Antonio
They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Atlas, M.D.San Antonio, TX 782581902881535
- Vernon Benson, M.D.San Antonio, TX 782581487638011
- David Bird, M.D.San Antonio, TX 782581346468246
- John Dickson, M.D.San Antonio, TX 782581154467116
- George Ford III, M.D.F.A.C.P.San Antonio, TX 782581841275443
- Kevin Horton, M.D.San Antonio, TX 782581710962972
- Yolanda Marcos, MDSan Antonio, TX 782581104845445
- Scott McGlynn, D.O.San Antonio, TX 782581770579187
Common questions
What is Timothy A. Hernandez, MD's NPI number?
Timothy A. Hernandez, MD's National Provider Identifier (NPI) is 1851495584, issued on Sep 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy A. Hernandez, MD located?
The NPPES record lists a practice address at 1139 E Sonterra Blvd, San Antonio, TX, 78258. Phone: (210) 404-0000. Providers update this record themselves, so call before visiting.
How can I verify Timothy A. Hernandez, MD's license?
NPPES lists Texas license number K0489, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy A. Hernandez, MD prescribe under Medicare Part D?
In 2024, Timothy A. Hernandez, MD had 5,175 Medicare Part D claims for 349 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Timothy A. Hernandez, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.